This module tries to rescue (restart) a service if it is down...
At the moment only apache is rescued (more coming soon...)

monitor: enhanced the apache-check -> noe we also check if apache was able to send data and not only to establish a connection

monitor now uses the timestamp of the masterdb and no longer the timestamp of the individual client-server

The "old" monitoring-module and the "new" rescue-module needed some function twice. So i created a tool-object containing these functions

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Undone changes in remoteaction_core_module. It is required that every module extends the base module class to ensure that all required subfunctions are present in every module.

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- Changed os updates from world to security advisories
- Added support for remote os update
- Added bind compatibility code
- Fixed bugs in cron compatibility

- Updated debian installation instructions.

- replace double-quotes with single-quotes whenever appropriate
- fix indentation

- replace double-quotes with single-quotes whenever appropriate